Rattle

Asked by Mar 13, 2017 at 08:12 PM about the 1998 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

1998 gmc suburban 4wd - when I first start it up it
has a rattle low down. The rattle goes away when
it's warmed up. ? Main bearing?

3 Answers

74,385

A rattle low down (more like a thump or a knock) could be worn rod bearings.

50,755

If the rattle goes away it might be piston slap which is pretty common. How many miles on this engine?

242,000 miles

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